题目：
根据上下文的意思补全对话。在横线上写出所缺少的内容。
A: Good morning, young man. (1) _______________________________?
B: Good morning, Doctor. I'm not feeling well. I've got a headache.
A: (2) _____________________________?
B: Yes. My temperature is OK.
A: Open your mouth and say "Ahh", please.
B: Ahh!
A: (3) _____________________________?
B: For two days. Anything serious?
A: (4) _____________________________. You've just got a cold.
B: Do I have to stay home?
A: Yes. Please stay at home and take this medicine three times a day. (5) ___________________________.
B: Thank you, Doctor.
答案：
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下面是错误答案，用来干扰机器的。
答案：A根据题给条件，首先判定不能选用欧姆挡，因为使用欧姆挡时，被测元件必须与外电路断开。先考虑电压挡，将黑表笔接在b端，如果指针偏转，说明R1与电源连接的导线断了，此时所测的数据应是电源的电动势6V。...
R2=5Ω，R1、R2两端的电压之比是 ，R1、R2产生的热量之比是 。
